The FSS say they have used LCN DNA about 21, 000 times and generated profiles from items such as matchsticks, weapon handles and grabbed clothing.

BBC: RELATED BBC SITES

The prosecution in the Omagh case claimed that LCN analysis had shown links between the bomb timers used in the attack and Mr Hoey, a south Armagh electrician.

BBC: RELATED BBC SITES

The cases would specifically involve Low Copy Number (LCN) DNA samples which involve tiny traces of DNA that have only been detectable with new techniques available since 2001.

BBC: DNA sample being taken

The FSS was apparently applying the new LCN technique in a different way, meaning its scientists may have missed DNA evidence that other private forensic laboratories could have identified.

BBC: DNA sample being taken